Algebraic Expre...

Suhail is a postman. He receive money for his work based on a formula, which is 3l(4l - 5) + 3 and is calculated in rupees, where l is the number of letters he delivers. If he delivers 5 letters on Monday, then how much amount of money will he be paid?

Sumit opened a new account in ABS bank. In the first month, he deposited Rs. p in his account. In the second month, he deposited Rs. p² money in his account. In the third month, he deposited the cube of the amount deposited by him in the first month. In the fourth month, he deposited money equal to the product of amounts deposited by him in the last three months. The amount deposited in the fourth month is

In an electronics shop, a refrigerator costs 3a - 7b + 6, a television costs 5a + 2b + 8 and a music system costs a + 5b + 6. If a customer pays (2)²a + (4)² to the shopkeeper for all of these, how much amount does he need to pay more?

Fill in the blanks.

(A) A factor which occurs in each term is called the ____ factor.
(B) The representation of an expression as the product of its factors is called ____.
(C) (y + a)(y + b) = y² + (a + b)y + ____
(D) A/An ____ is formed by the product of variables and constants.